Mining machine



0st. 15, 1935. w. w. SLOANE 2,017,573

MINING MACHINE Original Filed Oct. 15, 1950 e sheets-sheet 1 Oct 15, 1935.

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MINING MACHINE Original Filed Oct. 13, 1930 6 Sheets-Sheet 2 7756/2201 Z'Jdlam 711010014? W. W. SLOANE MINING MACHINE Get. 15, 1935.

6 Sheets-Sheet 3 Original Filed Oct, 15, 1930 Gct. 1 5, 1935. w. w. SLOANE MINING MACHINE Original Filed Oct. 13, 193 6 Sheets-Sheet 4 2011450,! @g Q Q Get. 15, 1935. w. w. SLOANE MINING MACHINE Original Filed Oct. 13, 1930 6 sh ets-sh et 5 Oct. 15, 1935. w, w. SLOANE 2,017,573

MINING MACHINE Original Filed Oct. 13, 1930 6 Sheets-Sheet 6 Patented Oct. 15, 1935 UNlT ED STATES PATENT orricr.

MENING MACHINE Application October 13, 1930, Serial No. 488,439 Renewed October 8, 1932 44 Claims.

This invention relates to improvements in mining machines and more particularly to machines of the track mounted type having projecting kerf cutting elements thereon for cutting horizontal and shearing kerfs in the mine wall.

This invention has, among other objects, to provide a new and improved mining machine particularly adapted for operation in coal mines which may cut a horizontal kerf adjacent the mine floor and at various elevations with respect thereto, and which may also cut a vertical or shearing kerf without withdrawing the horizontal cutting element from the coal.

In carrying out my invention, I utilize a machine of the track mounted type having a cutter arm adapted to cut a horizontal kerf in the mine wall, which machine may be similar to that disclosed in a prior application, Serial No. 402,505, of William T. McCullough, filed October 25, 1929, which issued as Patent No. 1,938,850, December 12, 1933, but which has, in addition, an extensible and retractable cutting element mounted thereon for making a vertical cut when the horizontal cutting element is sumped in the mine wall.

A prior application, Serial No. 467,745, filed by me July 14, 1930, and now Patent No. 2,007,817, discloses a mining machine of a type similar to that shown in my present application. My resent application differs from my prior application, however, in the arrangement of the drive gearing and means for driving the extensible and retractable cutting element from the motor which serves as a drive means for the horizontal cutting element.

My invention may be more clearly understood with reference to the accompanying drawings wherein:

Figure l is a top plan view of one embodiment of my invention with parts broken away and in section;

Figure 2 is a side elevation of the device shown in Figure l with parts broken away and in section;

Figure 3 is a partial fragmentary side elevation of the device shown in Figure 1 taken from the opposite side of the device than Figure 2 with parts broken away and in section;

Figure 4 is an enlarged partial fragmentary plan view of the embodiment of my invention illustrated in Figure l, with parts broken away and in section;

Figure 5 is an enlarged partial fragmentary side elevation of the embodiment of my invention illustrated in Figure 1, with parts broken away and in section;

Figure 6 is a sectional view taken on line 6-6 of Figure 4;

Figure 7 is a sectional view taken on line 1-1 5 of Figure 6;

Figure 8 is a sectional view taken on line 8-8 of Figure 4;

Figure 9 is a partial fragmentary rear end View of the embodiment of my invention illus- 10 trated in Figure 1, with parts broken away;

Figure 10 is a sectional view taken on line. ill-4B of Figure 4; and

Figure 11 is a sectional view taken on line ll-ll of Figure 4.

Like numerals refer to like parts throughout the various figures.

Referring now in particular to the drawings, the embodiment of my invention illustrated includes a truck I mounted on track wheels 2 and 20 axles 3, having a turntable l thereon for supporting a horizontally disposed cutting element 5 adapted to cut a horizontal kerf in the mine wall and an extensible and retractable cutting element 1 movable in a vertical plane to cut a shearing 25 kerf in the mine wall.

The horizontally disposed cutting element 5 is trunnioned on the turntable 4 on trunnion supports 8 near the forward end thereof and is offset to one side of said turntable and yieldably supported at its rearward end by an adjustable support member 9 in a usual manner for adjusting the position of said cutting element with respect to said turntable.

Said horizontally disposed cutting element includes a motor l0 herein shown as an electric motor having a cutter frame ll projecting forwardly therefrom beyond the boundaries of the truck l. A cutter head I2 is suspended beneath the cutter framell and is movable vertically 4 with respect thereto on guides I3, 13 and has a cutter bar l4 projecting forwardly therefrom having a cutter chain l5 movable thereabout. The cutter bar- I4 is carried by the cutter head It for pivotal movement with respect thereto about an axis coaxial with the axis of the sprocket for driving the cutter chain l5 about said cutter bar and may be locked in various desired positions of adjustment with respect to said cutter head to permit said cutter bar to be positioned to one side of and below the level of the track for cutting a kerf below the level of the track along each side of and in front of said track. The cutter chain I5 is driven fromthe motor [0 through a suitable gear train in a usual manner which includes a bevel gear and pinion drive 16, and a vertically disposed splined shaft I1. The cutting element is similar to that shown in the aforementioned prior application of William T. McCullough, Serial No. 402,505, so will not herein be described in detail.

The turntable 4 is rotated by meansof a motor l9 on the truck I near the rearward end thereof through a suitable gear reduction mechanism which herein comprises a motor pinion 29, a spur gear 2! driven thereby, a transverse shaft 22 rotated by said gear, and a worm and worm gear drive indicated at 23 for operativeiy connecting said transverse shaft with a vertical shaft 24. A spur gear 25 is fixed at the lower end of the vertical shaft 25 and meshes with and drives a spur gear 25 which drives a spur gear 21 coaxial with the spur gear 25. The spur gear 21 meshes with teeth 23 on the outer periphery of the turntable 4 for moving said turntable.

Means driven from the motor i9 are provided for moving the truck I and mining machine about the mine which, as herein shown, include a spur pinion 29 on the end of the transverse shaft 22 which meshes with and drives a spur gear 3| on a transverse shaft 32. A sprocket 33 is fixed on the transverse shaft 32 and has operative connection with the axles 3 and wheels 2 through a suitable chain and sprocket drive in a usual manner not herein shown since it is no part of my invention.

Referring now in particular to the details of several of the novel features of my invention, the extensible and retractable cutting element 1 is supported on an extension from the horizontally disposed cutting element 5 at one side of said cutting element and is driven from the motor l9 in a manner which will hereinafter be described.

A support means 34, for supporting the horizontal cutting element 5 on the trunnion supports 8 for movement about a transverse axis, extends from the cutter frame ll across the turntable 4 beneath the extensible and retractable cutting element 1 and forms a support for the forward portion of said cutting element. A support means 35 extends rearwardly from the motor ID to one side of said motor to form a support for the rearwardportion of the extensible and retractable cutting element 1.

The extensible and retractable cutting element 1 includes a movable frame 31 having a cutter bar 38 projecting forwardly from the inner side thereof, which cutter bar is pivotally movable with respect to said movable frame about a transverse axis.

A longitudinally extending hollow tube 39 is provided beneath the movable frame 31 and forms a support for said movable frame. A rack 4| is provided on the top portion of the longitudinally extending hollow tube 39. This rack is of an ordinary construction and includes an upwardly extending member 42 which extends along the hollow tube 39 for its entire length and has pins 43 extending outwardly from each side thereof for a portion of its length. The upwardly extending member 42 may be fastened to the hollow tube 39 by any means well known to the art but is herein preferably welded to said hollow tube. Guide pieces 44 are provided on'each side of the hollow tube 39 to provide a guide for the movable frame 31. These guide pieces-may be fixed to the hollow tube 39 by any suitable means well known to the art but are herein preferably welded to said hollow tube. The hollow tube 39 is supported at its rearward end in the support means 35 extending rearwardly from the motor I!) and is held thereto by means of pins 45 which pass through the upwardly extending member 42. Said hollow tube is supported near its forward end on the support means 34 extending from the 5 cutter frame I I, by means of a depending portion 58 which fits into a guide 46a formed in said support means.

A member 41 is fixed to the forward end of the hollow tube 39 by means of pins 48, which pass through said member and the upwardly extending member 42, and extends upwardly from said hollow tube. A T shaped guide strip 49 is pivotally mounted on the top end of the member 91 and extends rearwardly therefrom. This guide strip is adapted to engage a groove 5| in the top portion of the movable frame 31 to support said movable frame for movement along the hollow tube 39 and hold said movable frame in a stationary position with respect to the turntable 4. The rearward end of the T shaped guide strip 49 is threaded and is keyed within an upwardly extending portion 52 of the support means 35. This guide strip is held to the upwardly extending portion 52 by means of nuts 53 threaded on the threaded portion of the T shaped guide strip 59 and abutting each side of the upwardly extending portion 52 of the support means 35.

The movable frame 31 provides a bearing support and housing for the gear mechanism for the extensible and retractable cutting element 1 and is provided with a bearing support 56 which bears on the top portion of the upwardly extending member 52 and is slidable therealong. This movable frame also has bearing support on the guide pieces 44 at each side thereof and gibs 54 and 55 are fixed to the under portion of said movable frame and engage the under portion of the guide pieces 44. It may thus be seen that the movable frame 31 is supported for slidable movement on and along the hollow tube 39 and on the member 42 extending upwardly from said hollow tube, and that said movable frame is guided by the T shaped guide strip 49 at its top portion and the guide pieces 44 and gibs 54 and 55 at its lower portion.

Referring now in particular to the cutter bar 38 and means for supporting said cutter bar in the movable frame 31 for movement about a transverse axis, said cutter bar is of an ordinary construction and is supported on a cutter bar support member 51 and extends forwardly therefrom. The cutter bar support member 51 is provided with an annular groove 58 which is engaged by an annular guide 59 at the inner side of the movable frame 31 so that said cutter bar supporting member and the cutter bar 38 may be pivotally moved with respect to said frame. The outer side of the cutter bar support member 51 is provided with a shoulder 60 which forms a support 60 for an arcuate rack 6| keyed to said shoulder and held to said cutter bar support by means of cap screws 62. This rack is engaged by a pinion 63 on a transverse shaft 64 journaled in the movable frame 31. The transverse shaft 64 is op- 65 eratively connectible with the motor H], in a manner which will hereinafter be more fully described, so that rotation of said shaft will move the cutter bar 38 about a transverse axis to raise or lower the forward end of said cutter bar.

The cutter bar 38 has a cutter chain 65 movable thereabout in a usual manner. The cutter chain 55 is driven by a sprocket 66 keyed on the inner end of a transverse shaft 61 coaxial with the pivotal axis of the cutter bar support mem- 7 5 ber 51 and journaled within a member 68 fixed to said cutter bar support member. The shaft 61 has a bevel gear 69 fixed thereon for rotating said shaft. This bevel gear is driven by a bevel pinion II keyed on a sleeve I2 which in turn is driven from the motor I8 in a manner which will hereinafter be more fully described.

Referring now in particular to the means for movingthe movable frame 31 along the rack 4i and extending or retracting the cutting element 1, a pair of sprockets I3 are provided which engage the pins 43 on each side of the upwardly extending member 42. These sprockets are integral with each other and are keyed on a transverse shaft I4 journaled in the movable frame 31. A spur gear is keyed on the transverse shaft I4 for driving said shaft from the motor I8 in a manner which will hereinafter be described so that rotation of the sprockets I3 will cause movement of the movable frame 31 along the rack M.

Referring now in particular to the means for driving the mechanism for raising and lowering the cutter bar 33 and extending and retracting said cutter bar and driving the cutter chain 65 from the motor I8, said motor is provided with a rearwardly extending motor shaft 11 having a pinion I8 freely mounted thereon and operatively connectible therewith by means of a clutch F6 in a usual manner. The pinion I8 meshes with and drives an idler gear I9 on a stud 88 supported on the support means 35. The idler gear 19 meshes with and drives a spur gear 8| keyed on a longitudinally extending shaft 82 journaled in the support means 35 near its rearward end and extending forwardly therefrom and journaled in the member 81 at its forward end. The longitudinally extending shaft 82 is provided with splines 83 on each side thereof (see Figs. 6 and 7) A splined sleeve 84 is splined on the shaft 82 inside of the sleeve I2. The sleeve I2 is splined on and driven from the splined sleeve 84 and extends forwardly therefrom. Thus rotation of the longitudinal shaft 82 causes rotation of the splined sleeve 88 which drives the sleeve I2 and bevel pinion II and thus drives the bevel gear 69 and cutter chain 65.

The sleeve 12 has a spur gear 85 cut integral therewith adjacent the forward end of the bevel pinion II. A sleeve 87 is freely mounted on the sleeve I2 adjacent the forward end thereof for rotatable movement with respect thereto. A bevel pinion 88 is keyed on the sleeve 8'! and meshes with and is driven from the bevel gear 69. A spur gear 89 is cut integral with the sleeve 8'! and is driven from the bevel pinion 88. The spur gear 85 meshes with and drives a spur gear 90 freely mounted on a longitudinally extending shaft 9| disposed above said spur gear. Like wise, the spur gear 89 meshes with and drives a spur gear 92 freely mounted on the longitudinally extending shaft 9|. I

Suitable means are provided so that either of the spur gears 98 or 92 may drive the longitudinally extending shaft SI so that the direction of rotation of said shaft may be reversed without reversing the motor ID. Said means herein comprises suitable clutch means, herein shown as cone clutches 93 and 9d, selectively engageable with the spur gears 88 and 92, respectively, by

means of a suitable system of levers not herein shown since it is no part of my invention. The clutches 93 and 94 are connected together so that only one gear may be operatively connected with the shaft ill at a time.

A spur gear 95 is fixed on the forward end of the longitudinally extending shaft 8 I. This gear meshes with and drives a spur gear 91 on a longitudinally extending shaft 98. The longitudinally extending shaft 98 is journaled in the movable frame 31 and has a worm 99 cut integral therewith. The worm 99 meshes with and drives a worm gear I60 keyed on a hub ll of a spur gear I02 freely mounted on the transverse shaft 68. The spur gear I82 meshes with and drives the spur gear I5 keyed on the transverse shaft I8 for driving the sprockets I3 and thus moving the movable frame 31 and cutter bar 38 along the rack 4 I.

It may thus be seen that the sprockets I8 may be driven from the motor I8 in opposite directions without reversal of said motor by means of engaging either the spur gear 98 or the spur gear 92 with the shaft 9I by means of the clutch 93 or 94. Thus a means has been provided for moving the cutter bar 38 into the coal to cut a vertical kerf therein and for removing said cutter bar from the coal after the kerf has been cut.

Likewise, the spur gears 85 and 89 mesh with and drive spur gears I84 and I85 freely mounted on a longitudinally extending shaft I86 beneath the longitudinal shaft 82. Suitable means are provided for operatively connecting either the spur gear I84 or spur gear I85 with the shaft I86 for rotating said shaft in opposite directions, which means herein comprise cone clutches I81 and I88 selectively engageable with said respective gears. The clutches I 81 and I88 are connected together so that only one gear may be operatively connected with the shaft I86 at a time and are operated by a suitable system of levers in a usual manner.

The longitudinally extending shaft I86 is journaled'in the movable frame 31 and has a worm I89 on its forward end. The worm I89 meshes with and drives worm gear I I8 keyed on a vertical shaft III near its lower end. A Worm II 2 is cut integral with the vertical shaft I I I near its upper end and meshes with and drives a worm gear I I3 keyed on the transverse shaft 64. Thus rotation of the worm gear H3 drives the transverse shaft 64 which drives the spur pinion 63 and raises or lowers the cutter bar 38 about the axis of the transverse shaft 6?.

Thus it may be seen that the transverse shaft 64 and pinion 63 may be driven from the motor I8 in opposite directions without reversal of the motor by selectively connecting either the spur gear I04 or spur gear I85 to the longitudinal shaft I 85 by means of the respective cone clutch I81 or I88 to move the cutter bar 38 about the axis of the transverse shaft 61 and raise or lower the forward end of said cutter bar to feed said cutter bar vertically into the coal for cutting a vertical kerf in the coal face.

It may also be seen that the cutter bar 38 may be fed vertically or longitudinally from the motor I 8 and that the cutter chain 65 may be driven from said motor during said vertical or longitudin'almovement of the cutter bar 38 in all position-s of the movable frame 31 and cutter bar 38 with respect to the horizontal cutting element 5.

While I have herein shown and described one form in which my invention may be embodied, it will be understood that the construction thereof and the arrangement of the various parts may be altered without departing from the spirit and scope thereof. Furthermore, I do not wish to be construed as limiting myself to the specific embodiment illustrated in the drawings, excepting as it may be limited in the appended claims.

I claim as my invention:

1. In a mining machine, a frame, a motor on said frame, cutting mechanism guided for horizontal movement alongsaid frame including a projecting cutter bar, drive connections between said motor and cutting mechanism for moving said cutting mechanism along said frame and for independently swinging said cutter bar in a plane substantially parallel to the direction of movement of said cutting mechanism along said frame, said drive connections including a splined shaft driven by and fixed from endwise movement relative to said motor and extending parallel to the direction of movement of said cutting mechanism along said frame.

2. In a mining machine, a frame, a motor on said frame, a splined shaft extending horizontally of said frame driven by and fixed from endwise movement relative to said motor, cutting mechanism on said frame movable along said splined shaft including a projecting cutter bar adapted to cut a kerf in a plane parallel to the longitudinal axis of said shaft, and drive connections between said splined, shaft and cutting mechanism for moving said cutting mechanism along said splined shaft and for independently swinging said cutter bar in a plane parallel to the longitudinal axis of said splined shaft.

3. In a mining machine, a frame, a motor on said frame, cutting mechanism guided for horizontal movement along said frame including a projecting cutter bar having a cutter chain movable thereabout, drive connections between said motor and cutting mechanism for moving said cutting mechanism along said frame, for independently swinging said cutter bar in a plane substantially parallel to the direction of movement of said cutting mechanism 'along said frame, and for driving said cutter chain about said cutter bar, said drive connections including a splined shaft driven by and fixed from endwise movement relative to said motor and extending parallel to the cutting plane of said cutter bar.

4. In a mining machine, a frame, a kerf cutter mounted thereon, a motor on said frame, drive connections between said motor and kerf cutter for moving said kerf cutter along said frame for rectilinearly feeding said kerf cutter including a splined shaft driven by said motor and extending parallel to the cutting plane of said kerf cutter, a shaft extending parallel to said splined shaft, gearing connections between said shafts, a worm driven by said parallel shaft and a worm gear meshing with said worm.

5. In a mining machine, a frame, a kerf cutter mounted thereon, a motor on said frame, drive connections between said motor and kerf cutter for moving said kerf cutter along said frame including a splined shaft driven by said motor and extending parallel to the direction of movement of said kerf cutter, a shaft extending parallel to said splined shaft, reverse gearing connections between said shafts, a worm driven by said parallel shaft and a worm gear meshing with said worm.

6. In a mining machine, a frame, a motor on said frame, cutting mechanism on said frame including a cutting element having a projecting cutter bar, drive connections between said motor and cutting element for moving said cut-.

ting element along said frame and independently swinging said cutter bar including a splined shaft driven by said motor and extending parallel to the plane of movement of said cutting element, a pair of shafts extending parallel to said splined shaft, gearing connections from said splined shaft to said parallel shafts,

a geared connection from one of said parallel 5 shafts to said cutter bar for swinging said outter bar, and another geared connection from said other parallel shaft to said frame for moving said cutting element along said frame for feeding said cutter bar into a mine wall. 7 In a mining machine, a frame, a motor on said frame, cutting mechanism on said frame including a cutting element having a projecting cutter bar, drive connections between said motor and cutting element for moving said cutting element along said frame and independently swinging said cutter bar including a splined shaft driven by said motor and extending parallel to the direction of movement of said cutting element, a pair of shafts extending parallel to said splined shaft, independent reverse gearing connections from said splined shaft to said parallel shafts, a geared connection from one of said parallel shafts to said cutter bar for swinging said cutter bar in reverse direction without reversal of said motor, and another geared connection from said other parallel shaft to said frame for reversely moving said cutting element with respect to said frame without reversal of said motol.

8. In a mining machine, a frame, a motor on said frame, a longitudinally extending splined shaft driven by said motor, cutting mechanism on said frame including a cutting element having a projecting cutter bar movable with respect to said frame along said splined shaft in a plane parallel to the axis of said shaft for feeding said cutter bar into a mine wall, and drive connections between said splined shaft and cutting element for moving said cutting element 4Q along said frame and independently swinging said cutter bar in all positions of said cutting element with respect to said splined shaft comprising a pair of shafts extending parallel to said splined shaft, gearing connections from said splined shaft to said parallel shafts, a geared connection from one of said parallel shafts to said cutter bar and another geared connection from said other parallel shaft to said frame.

9. In a mining machine, a frame, a motor on said frame, a longitudinally extending splined shaft driven by said motor, cutting mechanism on said frame including a cutting element having a projecting cutter bar movable with respect to said frame along said splined shaft and drive connections between said splined shaft and cutting element for moving said cutting element with respect to said frame and independently swinging said cutter bar in all positions of said cutting element with respect to said splined shaft comprising a pair of shafts extending parallel to said splined shaft, independent reverse gearing connections from said splined shaft to said parallel shafts, a geared connection from one of said parallel shafts to said cutter bar for swingas ing said cutter bar in reverse direction without reversal of said motor, and another geared connection from said other parallel shaft to said frame for reversely moving said cutting element with respect to said frame without reversal of said motor.

10. In a mining machine, a frame, a motor on said frame, cutting mechanism on said frame including a cutting element having a projecting cutter bar having a cutter chain movable thereabout.

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drive connections between said motor and cutting element for moving said cutting element with respect to said motor along said frame at a feeding speed for feeding said cutter bar and driving said cutter chain about said cutter bar including a horizontally disposed splined shaft driven by said motor and extending parallel to the cutting plane of said cutting element, a gear movable along said splined shaft and having operative connection with said cutter chain, a shaft parallel to said splined shaft and movable with respect thereto, and a geared connection between said splined shaft and said last mentioned shaft.

11. In a mining machine, a frame, a motor on said frame, cutting mechanism on said frame including a cutting element having a projecting cutter bar having a cutter chain movable thereabout, drive connections between said motor and cutting element for moving said cutting element with respect to said motor along said frame at a feeding speed for feeding said cutter bar and driving,said cutter chain about said cutter bar including a horizontally disposed splined shaft driven by said motor and extending parallel to the cutting plane of said cutting element, a gear movable along said splined shaft and having operative connection with said cutter chain, a shaft parallel to said splined shaft and movable with respect thereto, a geared connection between said splined shaft and said last mentioned shaft for driving said last mentioned shaft therefrom, and a geared connection from said shaftto said frame for moving said cutting element along said frame.

12. In a mining machine, a frame, a motor on said frame, cutting mechanism on said frame including a cutting element having a projecting cutter bar having a cutter chain movable thereabout, drive connections between said motor and cutting element for moving said cutting element with respect to said motor along said frame at a feeding speed for feeding said cutter bar and driving said cutter chain about said cutter bar including a splined shaft driven by said motor having operative connection with said cutting element and extending parallel to the cutting plane of said cutting element, a gear movable along said splined shaft and having driving connection with said cutter chain, a shaft parallel to said splined shaft and movable with respect thereto, a geared connection between said last mentioned shaft and said splined shaft for driving said last mentioned shaft therefrom, and a geared connection from said shaft to said frame for moving said cutting element along said frame including a worm and worm gear.

13. In a mining machine, a frame, a motor on said frame, cutting mechanism on said frame including a cutting element having a projecting cutter bar having a cutter chain movable thereabout, drive connections between said motor and cutting element for moving said cutting element with respect to said motor along said frame at a feeding speed for feeding said cutter bar, independently swinging said cutter bar, and driving said cutter chain about said cutter bar including a splined shaft driven by said motor and extending parallel to the cutting plane of said cutting element, a gear movable along said splined shaft and having driving connection with said cutter chain, a pair of shafts parallel to said splined shaft and movable with respect thereto and geared connections between said splined shaft and said last mentioned shafts.

14, In a mining machine, a frame, a motor on said frame, cutting mechanism on said frame including a cutting element having a projecting cutter bar having a cutter chain movable thereabout, drive connections between said motor and cutting element for moving said cutting element with respect to said motor along said frame at a feeding speed 'for feeding said cutter bar, independently swinging said cutter bar, and driving said cutter chain about said cutter bar including a splined shaft driven by said motor and extending parallel to the cutting plane of said cutting element, a gear movable along said splined shaft and having driving connection with said cutter chain, a pair of shafts parallel to said splined shaft and movable with respect thereto, geared connections between said splined shaft and said last mentioned parallel shafts, a connection between one of said parallel shafts and said cutter bar, and a geared connection between said other parallel shaft and said frame.

15. In a mining machine, a frame, a motor on said frame, cutting mechanism on said frame including a cutting element having a projecting cutter bar having a cutter chain movable thereabout, drive connections between said motor and cutting element for moving said cutting element with respect to said motor along said frame, independently swinging said cutter bar, and driving said cutter chain about said cutter bar including a splined shaft driven by said motor and extending parallel to the direction of movement of said cutting element along said frame, a gear movable along said splined shaft and having driving connection with said cutter chain, a pair of shafts parallel to said splined shaft and movable with respect thereto, a geared connection between said splined shaft and one of said parallel shafts for driving said shaft in reverse directions without reversal of said motor including reverse gearing, and another geared connection between said splined shaft and said other parallel shaft for driving said shaft in reverse directions without reversal of said motor including reverse gearing.

16. In a mining machine, a frame, a motor on said frame, cutting mechanism on said frame 45 including a cutting element having a projecting cutter bar having a cutter chain movable thereabout, drive connections between said motor and cutting element for moving said cutting element along said frame, independently swinging said cutter bar, and driving said cutter chain about said cutter bar including a splined shaft driven by said motor and extending parallel to the direction of movement of said cutting element along said frame, a gear movable along said splined shaft and having driving connection with said cutter chain, a pair of shafts parallel to said splined shaft and movable with respect thereto, a geared connection between said splined shaft and one of said parallel shafts for driving said shaft in reverse directions without reversal of said motor including reverse gearing, another geared connection between said splined shaft and said other parallel shaft for driving said shaft in reverse directions without reversal of said mozontal and shearing cutting mechanism thereon including a horizontal cutter bar having a cutter chain movable thereabout, a motor on said support, a drive connection from said motor to said cutter chain, an extensible and retractable cutter bar pivotally movable in a vertical plane for cutting a shearing kerf in the mine wall having a cutter chain movable thereabout, and a drive connection from said motor to said second mentioned cutter chain.

18. In a mining machine, a support, and horizontal and shearing cutting mechanism thereon including a horizontal cutter bar having a cutter chain movable thereabout, a motor on said support, a drive connection from said motor to said cutter chain, an extensible and retractable cutter bar pivotally movable in a vertical plane for cutting a shearing kerf in the mine wall having a cutter chain movable thereabout, and a drive connection from said motor to said second mentioned cutter chain including a splined shaft driven by said motor and extending longitudinally of said second mentioned cutter bar.

19. In a mining machine, a support, and horizontal and shearing cutting mechanism thereon including a horizontal cutter bar having a cutter chain movable thereabout, a motor on said support, a drive connection from said motor to said cutter chain, an extensible and retractable cutter bar pivotally movable in a vertical plane for cutting a shearing kerf in the mine wall having a cutter chain movable thereabout, a drive connection from said motor to said second mentioned cutter chain for driving said cutter chain about said cutter bar, extending and retracting said second mentioned cutter bar with respect to' said support and pivotally moving said cutter bar in a vertical plane.

20. In a mining machine, a support, and horizontal and shearing cutting mechanism thereon including a horizontal cutter bar having a cutter chain movable thereabout, a motor on said support, a drive connection from said motor to said cutter chain, an extensible and retractable cutter bar pivotally movable in a vertical plane for cutting a shearing keri in the mine wall and having a cutter chain movable thereabout, a drive connection from said motor to said second mentioned cutter chain for driving said cutter chain about said cutter bar, extending and retracting said second mentioned cutter bar with respect to said support and pivotally moving said cutter bar in a vertical plane including a splined shaft driven by said motor and extending longitudinally of said second mentioned cutter bar.

21. In a mining machine, a support movable about a vertical axis, and horizontal and shearing cutting mechanism mounted on said support including a motor, a horizontal cutter bar having a cutter chain movable thereabout, a drive connection from said motor to said cutter chain, an extensible and retractable cutter bar pivotally movable in a vertical plane for cutting a vertical kerf in the mine wall and having a cutter chain movable thereabout, and a drive connection from said motor to said cutter chain.

22. In a mining machine, a support movable about a vertical axis, and horizontal and shearing cutting mechanism mounted on said support including a motor, a horizontal cutter bar having a cutter chain movable thereabout, a drive connection from said motor to said cutter chain, an extensible and retractable cutter bar pivotally movable in a vertical plane for cutting a vertical kerf in the mine wall and having a cutter chain movable thereabout, and a drive connection from said motor to said cutter chain including a splined shaft driven by said motor and extending longitudinally of said second mentioned cutter bar.

23. In a mining machine, a support movable about a vertical axis, and horizontal and shearing cutting mechanism mounted on said support 5 including a motor, a horizontal cutter bar having a cutter chain movable thereabout, a drive connection from said motor to said cutter chain, an extensible and retractable cutter bar pivotally movable in a vertical plane for cutting a verti- 10 cal kerf in the mine wall and having a cutter chain movable thereabout, a drive connection from said motor for pivotally moving said second mentioned cutter bar with respect to said support, for extending and retracting said second men- 5 tioned cutter bar with respect to said support, and for driving said cutter chain about said outter bar in all positions of said cutter bar with respect to said support.

24. In a mining machine, a support movable 20 about a Vertical axis, and horizontal and shearing cutting mechanism mounted on said support including a motor, a horizontal cutter bar having a cutter chain movable thereabout, a drive connection from said motor to said cutter chain, 25 an extensible and retractable cutter bar pivotally movable in a vertical plane for cutting a vertical kerf in the mine wall and having a cutter chain movable thereabout, a drive connection from said motor for pivotally moving said second men- 30 tioned cutter bar with respect to said support, for extending and retracting said second mentioned cutter bar with respect to said support, and for driving said cutter chain about said cutter bar in all positions of said cutter bar with respect to 5 said support including a splined shaft driven by said motor and extending longitudinally of said second mentioned cutter bar.

25. In a truck mounted mining machine, a turntable, and horizontal and shearing cutting 40 mechanism thereon-including a horizontal cutter bar having a cutter chain movable thereabout adapted to cut a horizontal kerf adjacent the mine bottom, a motor, means for driving said cutter chain from said motor, an extensible and retract- 45 able cutter bar pivotally movable in a vertical plane for cutting a shearing kerf in the mine wall having a cutter chain movable thereabout and means connectible with said motor for driving said second mentioned cutter chain.

26. In a truck mounted mining machine, a turntable, and horizontal and shearing cutting mechanism thereon including a horizontal cutter bar having a cutter chain movable thereabout adapted to cut a horizontal kerf adjacent the 55 mine bottom, a motor, means for driving said cutter chain from said motor, a horizontally extensible and retractable cutter bar adapted to cut a vertical kerf in the mine wall having a cutter chain movable thereabout, and means connectible with said motor for driving said second mentioned cutter chain and extending and retracting said second mentioned cutter bar.

27. In a truck mounted mining machine, a turntable, and horizontal and shearing cutting mechanism thereon including a horizontal cutter bar having a cutter chain movable thereabout adapted to cut a horizontal kerf adjacent the mine bottom, a motor, means for driving said cutter chain from said motor, a vertically movable horizontally extensible and retractable cutter bar adapted to cut a vertical kerf in the mine wall having a cutter chain movable thereabout, and means driven from said motor for vertically moving said second mentioned cutter bar, extending and retracting said second mentioned cutter bar and driving said second mentioned cutter chain.

28. In a truck mounted mining machine, a turntable, and horizontal and shearing cutting mechanism thereon including a horizontal cutter bar having a cutter chain movable thereabout adapted to cut a horizontal kerf adjacent the mine bottom, a. motor, means for driving said cutter chain from said motor, a vertically movable horizontally extensible and retractable cutter bar supported on said turntable adjacent one side of said horizontal cutter bar adapted to cut a vertical kerf in the mine wall and having a cutter chain movable thereabout, and means driven by said motor for vertically moving said second mentioned cutter bar, extending and retracting said second mentioned cutter bar and driving said cutter chain about said second mentioned cutter bar.

29. In a truck mounted mining machine, a turntable, and horizontal and shearing cutting mechanism thereon including a horizontal cutter bar having a cutter chain movable thereabout adapted to cut a horizontal kerf in the mine wall, a mo-tor,-means for driving said cutter chain from the forward end of said motor, a vertically movable horizontally extensible and retractable cutter bar supported on said turntable adjacent one side of said horizontal cutter bar adapted to cut a vertical kerf in the mine wall and having a cutter chain movable thereabout, and means driven by the rearward end of said motor for vertically moving, extending and retracting said second mentioned cutter bar and driving said cutter chain about said second mentioned cutter bar.

30. In a truck mounted mining machine, a turntable, and horizontal and shearing cutting mechanism thereon including ahorizontal cutter bar having a cutter chain movable thereabout adapted to cut a horizontal kerf in the mine wall, a motor having a motor shaft extending longitudinally of said mining machine, means connectible with the forward end of said motor shaft for driving said cutter chain about said cutter bar, a vertically movable horizontally extensible and retractable cutter bar supported on said turntable adjacent one side of said horizontal cutter bar adapted to cut a vertical kerf in the mine wall and having a cutter chain movable thereabout, and means driven from the rearward end of said motor shaft for vertically moving, extending and retracting said second mentioned cutter bar and driving said cutter chain about said second mentioned cutter bar including a longitudinally extending shaft parallel with said motor shaft.

31. In a truck mounted mining machine, a turntable, and horizontal and shearing cutting mechanism thereon including a horizontal cutter bar having a cutter chain movable thereabout adapted to out a horizontal kerf in the mine wall, a motor having a motor shaft extending longitudinally of said mining machine, means connectible with the forward end of said motor shaft for driving said cutter chain about said'cutter bar, and a horizontally extensible and retractable cutting element including a movable frame movable longitudinally of said mining machine having a forwardly extending cutter bar supported thereon for pivotal movement with respect thereto about a transverse axis, said cutter bar having a cutter chain movable thereabout, and means driven from the rearward end of said motor shaft for moving said movable frame longitudinally of said mining machine, movingsaid last mentioned cutter bar about said transverse axis and driving said cutter chain about said last mentioned cutter bar including a longitudinally extending shaft parallel with said motor shaft.

32. In a truck mounted mining machine, a turntable, and horizontal and shearing cutting mechanism thereon including a horizontal cutter bar having a cutter chain movable thereabout adapted to out a horizontal kerf in the mine wall, a motor having a motor shaft extending longitudinally of said mining machine, means connectible with the forward end of said motor shaft for driving said cutter chain about said cutter bar, a horizontally extensible and retractable cutting element includinga movable frame movable ing said cutter chain about said last mentioned cutter bar including a sleeve journaled in said movable frame, and a shaft extending longitudinally of said mining machine and parallel with said motor shaft and having driving connection with said sleeve.

33. In a truck mounted mining machine, a turntable, and horizontal and shearing cutting mechanism thereon including a horizontal cutter bar having a cutter chain movable thereabout adapted to cut a horizontal kerf in the mine wall, a motor having a motor shaft extending longitudinally of said mining machine, means connectible with the forward end of said motor shaft for driving said cutter chain about said cutter bar, a horizontally extensible and retractable cutting element including a movable frame movable longitudinally of said mining machine having a forwardly extending cutter bar supported thereon for pivotal movement with respect thereto about a transverse axis, said cutter bar having a cutter chain movable thereabout, and means driven from the rearwardend of said motor shaft for moving said movable frame longitudinally of said mining machine, moving said last mentioned cutter bar about said transverse axis and driving said cutter chain about said last mentioned cutter bar including a shaft extending longitudinally of said mining machine and parallel with said motor shaft, a sleeve journaled in said movable frame and movable along said shaft, and means for driving said sleeve from said shaft in all positions of said sleeve along said shaft.

34. In a truck mounted mining machine, a turntable, and horizontal and shearing cutting mechanism thereon including a horizontal cutter bar having a cutter chain movable thereabout adapted to out a horizontal kerf in the mine. wall, a motor having a motor shaft extending longitudinally of said mining machine, means connectible with said motor shaft for driving said cutter chain about said cutter bar, a horizontally extensible and retractable cutting element in cluding a movable frame movable longitudinally of said mining machine having a forward extending cutter bar supported thereon for pivotal movement with respect thereto about a transverse axis, said cutter bar having a cutter chain movable thereabout, and means driven from said motor shaft for moving said movable frame longitudinally of said mining machine, moving said last mentioned cutter bar about said transverse axis, and driving said cutter chain about said last mentioned cutter bar including a shaft extending longitudinally of said mining machine and parallel with said motor shaft, a sleeve journaled in said movable frame and movable along said shaft, a bevel gear on said sleeve and driven having a cutter chain movable thereabout adapted to cut a horizontal kerf in the mine wall, a motor having a motor shaft extending longitudinally of said min ng machine, a horizontally extensible and retractable cutting element includ ing a movable frame movable longitudinally of said mining machine having a forwardly extending cutter bar supported thereon for pivotal movement with respect thereto about a transverse axis, said cutter bar having a cutter chain movable thereabout, and means driven from the rearward end of said motor shaft for moving said movable frame longitudinally of said mining machine, moving said last mentioned cutter bar about said transverse axis and driving said outter chain about said last mentioned cutter bar including a shaft extending longitudinally of said mining machine and parallel with said motor shaft, a sleeve journaled in said movable frame and movable along said shaft, means for driving said sleeve from said shaft during movement of said sleeve along said shaft, a bevel gear on said sleeve and driven therefrom, another bevel gear having driven connection with said first mentioned bevel gear, means for driving said last mentioned cutter chain from said last mentioned bevel gear, a third bevel gear coaxial with said sleeve and freely. mounted thereon and driven from said second mentioned bevel gear, and gear reduction means connectible with said third bevel gear and said sleeve for moving said cutter bar about a transverse axis with respect to said movable frame and moving said movable frame longitudinally of said mining machine.

36. In a truck mounted mining machine, a turntable, and horizontal and shearing cutting mechanism thereon including a horizontal cutter bar having a cutter chain movable thereabout adapted to cut a horizontal kerf in the mine wall, a motor having a motor shaft extending longitudinally of said mining machine, a horizontally extensible and retractable cutting element including a movable frame movable longitudinally of said mining machine having a forwardly extending cutter bar supported thereon for pivotal movement with respect thereto about a transverse axis, said cutter bar having a cutter chain movable thereabout, and means driven from the rearward end of said motor shaft for moving said movable frame longitudinally of said mining machine, moving said last mentioned cutter bar about said transverse axis and driving said cutter chain about said last mentioned cutter bar including a shaft extending longitudinally of said mining machine and parallel with said motor shaft, a sleeve journaled in saidmovable frame and movable along said shaft, means for driving said sleeve from said shaft during movement of said sleeve along said shaft, a bevel gear on said sleeve and driven therefrom, another bevel gear having driven connection with said first mentioned bevel gear, means for driving said last mentioned cutter chain from said last mentioned bevel gear, a third bevel gear coaxial with said sleeve and freely mounted ther'on and driven from said second mentioned bevel gear, and gear 10 reduction means connectible with said third bevel gear and said sleeve for moving said cutter bar about a transverse axis with respect to said movable frame in reverse directions without reversal of said motor and independently moving said movable frame longitudinally of said mining machine in reverse directions without reversal of said motor.

37. In a truck mounted mining machine, a turntable, and horizontal and shearing cutting mechanism thereon including a horizontal cutter bar having a cutter chain movable thereabout adapted to cut a horizontal kerf in'the mine wall,

a motor having a motor shaft extending longitudinally of said mining machine, a horizontally extensible and retractable cutting element including a movable frame movable longitudinally of said mining machine having a forwardly extending cutter bar supported thereon for pivotal movement with respect thereto about a transverse axis, said cutter bar having a cutter chain movable thereabout, and means driven from the rearward end of said motor shaft for moving said movable frame longitudinally of said mining machine, moving said last mentioned cutter bar about said transverse axis and driving said cutter chain about said last mentioned cutter bar in cluding a shaft extending longitudinally of said mining machine and parallel with said motor shaft, a sleeve journaled in said movable frame and movable along said shaft, means for driving said sleeve from said shaft during movement of said sleeve along said shaft, a bevel gear on said sleeve and driven therefrom, another bevel gear having driven connection with said first mentioned bevel gear, means for driving said last mentioned cutter chain from said last mentioned bevel gear, a third bevel gear coaxial with said sleeve and freely mounted thereon and driven from said second mentioned bevel gear, and gear reduction means connectible with said third bevel gear and said sleeve for moving said cutter bar about a transverse axis with respect to said movable frame in reverse directions without reversal of said motorand independently or simultaneous- 555' ported thereon for pivotal movement with re- 70.

spect thereto about a transverse axis, said outter bar having a cutter chain movable thereabout, and means driven from the rearward end of said motor shaft for moving said movable frame longitudinally of said mining machine, moving said 7 5' last mentioned cutter bar about said transverse axis and driving said cutter chain about said last mentioned cutter bar including a shaft extending longitudinally of said mining machine and parallel with said motor shaft, a bevel gear coaxial with and slidable along said shaft and driven therefrom, another bevel gear having driven connection with said first mentioned bevel gear, means for driving said last mentioned cutter chain from said last mentioned bevel gear, a third bevel gear coaxial with said longitudinally extending shaft and driven from said second mentioned bevel gear, a vertically disposed arcuate rack having connection with said cutter bar, a spur gear having connection with said rack, and gear reduction means interposed between said spur gear and said third bevel gear and longitudinally extending shaft for driving said spur gear and moving said rack and cutter barabout a transverse axis with respect to said movable frame in reverse directions without reversal of said motor including a worm and worm gear connectible with said spur gear.

39. In a truck mounted mining machine, a turntable, andhorizontal and shearing cutting mechanism thereon including a horizontal cutteribar having a cutter chain movable. thereabout adapted to cut a horizontal kerf in the mine wall, a motor having a motor shaft extending longitudinally of said mining machine, a horizontally extensible and retractable cutting element including a movable frame movable longitudinally of said mining machine having a forwardly extending cutter bar supported thereon for pivotal movement with respect thereto about a transverse axis, said cutter bar having a cutter chain movable thereabout, and means driven from the rearward end of said motor shaft for moving said movable frame longitudinally of said mining machine, moving said last mentioned cutter bar about said transverse axis and driving said cutter chain about'said last mentioned cutter bar including a shaft extending longitudinally of said mining machine and parallel with said motor shaft, a bevel gear coaxial with and slidable along said shaft and driven therefrom, another bevel gear having driven connection with said flrst mentioned bevel gear, means for driving said last mentioned cutter chain from said last mentioned bevel gear, a third bevel gear coaxial with said shaft and driven from said second mentioned bevel gear, a vertically disposed arcuate rack having connection with said cutter bar, a spur gear having connection with said rack, gear reduction means interposed between said spur gear and said third bevel gear and longitudinally extending shaft for driving said spur gear and moving said rack and cutter bar about a transverse axis with respect to said movable frame in reverse directions without reversal of said motor, a longitudinally disposed rack having connection with said turntable, a sprocket sup-' ported in said movable frame and having engagement with said rack, and other gear reduction means interposed between said sprocket and said third bevel gear and longitudinally extending shaft for driving said sprocket and moving said movable frame along said rack in reverse directions without reversal of said motor.

40. In a truck mounted mining machine, a turntable, and horizontal and shearing cutting mechanism thereon including a horizontal cutter bar having a cutter chain movable thereabout adapted to cut a horizontal kerf in the mine wall, a motor having a motor shaft extending longitudinally of said min-ing machine, a horizontally extensible and retractable cutting element including a movable frame movable longitudinally of said mining machine having a forwardly extending cutter bar supported thereon for pivotal movement with respect thereto about a transverseaxis, said cutter bar having a cutter chain movable thereabout, and means driven from the rearward end of said motor shaft for moving said movable frame longitudinally of said mining machine, moving said last mentioned cutter bar about said transverse axis and driving said outter chain about said last mentioned cutter bar including a shaft extending longitudinally of said mining machine and parallel with said motor shaft, a bevel gear coaxial with and slidable along said shaft and driven therefrom, another bevel gear having driven connection with said first mentioned bevel gear, means for driving said last mentioned cutter chain from said last mentioned bevel gear, a third bevel gear coaxial with said shaft and driven from said second mentioned bevel gear, a vertically disposed arcuate rack having connection with said cutter bar, a spur gear having connection with said rack, gear reduction means interposed between'said spur gear and said third bevel gear and shaft for driving said spur gear and moving said'rack and cutter bar about a transverse axis with respect to said movable frame in reverse directions without reversal of said motor, a longitudinally disposed rack having connection with said turntable, a pair of sprockets supported in said movable frame and having engagement with said rack, and other gear reduction means interposed between said sprockets and said third bevel gear and shaft for driving said sprocket and moving said movable frame along said rack in reverse directions without reversal of said motor including a worm and worm gear reduction.

41. In a truck mounted mining machine, a turntable, and horizontal and shearing cutting mechanism supported on said turntable including a cutting element adapted to cut a kerf adjacent the mine bottom or at various elevations with respect thereto including a motor, a cutter frame forwardly of said motor and extending beyond said turntable, a cutter head movable towards and away from said cutter frame having a cutter chain movable thereabout, means for supporting said cutting element for pivotal movement about a horizontal axis adjacent the forward end of said turntable, and an extensible and retractable cutting element adapted to cut a vertical kerf in the mine wall supported by said cutter frame and motor for movement with said cutter frame and motor about said transverse axis including a movable frame movable longitudinally of said first mentioned cutting element having a forwardly extending cutter bar having a cutter chain movable thereabout and pivotally mounted on said movable frame for pivotal movement about a transverse axis.

42. In a truck mounted mining machine, a

turntable, and horizontal and shearing cutting mechanism supported on said turntable including a cutting element adapted to cut a kerf adjacent the mine bottom or at various elevationsmember engageable with the top portion of said extensible and retractable cutting element.

43. In a truck mounted mining machine, a turntable, and horizontal and shearing cutting mechanism supported on said turntable including a cutting element adapted to cut a kerf adjacent the mine bottom or at various elevations with respect thereto including a motor, a cutter frame forwardly of said motor and extending beyond said turntable, a cutter head movable towards and away from said cutter frame having a cutter chain movable thereabout, means for supporting said cutting element for pivotal movement about a horizontal axis adjacent the forward end of said turntable, an extensible and retractable cutting element adapted to cut a vertical kerf in the mine wall including a movable frame movable longitudinally of said first mentioned cutting element having a forwardly extending cutter bar pivotally movable with respect thereto and having a cutter chain movable thereabout, and means for supporting said movable frame on said first mentioned cutting element at one side thereof for movement with said first mentioned cutting element about said transverse axis including a longitudinally extending member supported by said first mentioned cutting element at one side thereof for supporting said movable frame for slidable movement along said member, and a guide spaced from and supported by said member engageable with the top portion of said movable frame. 7 V

44. In a truck mounted mining machine, a turntable, and horizontal and shearing cutting mechanism supported on said turntable including a cutting element adapted to cut a kerf adjacent the mine bottom or at various elevations with respect thereto including a motor, a cutter frame forwardly of said motor and extending beyond said turntable, a cutter head movable towards and away from said cutter frame having a cutter chain movable thereabout, means for supporting said cutting element for pivotal move ment about a horizontal axis adjacent the forward end of said turntable, an extensible and retractable cutting element adapted to cut a vertical kerf in the mine wall including a movable frame movable longitudinally of said first mentioned cutting element having a forwardly extending cutter bar pivotally movable with respect thereto and having a cutter chain movable thereabout, and means for supporting said movable frame on said first mentioned cutting element at one side thereof for movement with said first mentioned cutting element about said transverse axis including a longitudinally extending member supported by said first mentioned cutting element at one side thereof, a rack supported on said member, the top portion of said rack supporting said movable frame for slidable movement along said member, a guide spaced from and supported by said member engageable with the top portion of said movable frame, a sprocket engageable with said rack for moving said movable frame along said member, and means driven from said motor for driving said second mentioned cutter chain, pivotally moving said cutter bar with respect to said movable frame, and driving said sprocket for moving said movable frame and extensible and retractable cutting element along said rack and member.

WILLIAM W. SLOANE. 

